mirror of
https://github.com/square/certigo.git
synced 2024-04-21 12:32:40 +00:00
Matthew McPherrin
35679297a9
This moves two functions out of main.go. The only change to the functions was to make them take arguments, instead of using global variables in main. The mysql and psql imports are moved here too.
77 lines
1.6 KiB
Go
77 lines
1.6 KiB
Go
package pq
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import (
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"fmt"
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"net"
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nurl "net/url"
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"sort"
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"strings"
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)
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// ParseURL no longer needs to be used by clients of this library since supplying a URL as a
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// connection string to sql.Open() is now supported:
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//
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// sql.Open("postgres", "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full")
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//
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// It remains exported here for backwards-compatibility.
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//
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// ParseURL converts a url to a connection string for driver.Open.
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// Example:
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//
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// "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full"
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//
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// converts to:
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//
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// "user=bob password=secret host=1.2.3.4 port=5432 dbname=mydb sslmode=verify-full"
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//
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// A minimal example:
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//
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// "postgres://"
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//
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// This will be blank, causing driver.Open to use all of the defaults
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func ParseURL(url string) (string, error) {
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u, err := nurl.Parse(url)
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if err != nil {
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return "", err
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}
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if u.Scheme != "postgres" && u.Scheme != "postgresql" {
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return "", fmt.Errorf("invalid connection protocol: %s", u.Scheme)
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}
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var kvs []string
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escaper := strings.NewReplacer(` `, `\ `, `'`, `\'`, `\`, `\\`)
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accrue := func(k, v string) {
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if v != "" {
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kvs = append(kvs, k+"="+escaper.Replace(v))
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}
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}
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if u.User != nil {
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v := u.User.Username()
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accrue("user", v)
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v, _ = u.User.Password()
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accrue("password", v)
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}
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if host, port, err := net.SplitHostPort(u.Host); err != nil {
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accrue("host", u.Host)
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} else {
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accrue("host", host)
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accrue("port", port)
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}
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if u.Path != "" {
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accrue("dbname", u.Path[1:])
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}
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q := u.Query()
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for k := range q {
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accrue(k, q.Get(k))
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}
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sort.Strings(kvs) // Makes testing easier (not a performance concern)
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return strings.Join(kvs, " "), nil
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}
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